Discuss the following topics about Copyright:

Copyright protection for creative works: literature, art, music, computer programs and databases:

1.What exactly is copyright and what is it used for?

2.What is the copyright holder's legal position?

3.How and for how long is copyright acquired?

4.Copyright safeguards on a global scale

5.Copyright is exploited in a variety of ways.

6.Computer software is protected by copyright.

7.Utilization of patents to protect computer-implemented inventions

Note: Please provide some references of you answer, Thank you Tutor!